HYDRAULIC SUSPENSION LOCKOUT WILL NOT ENGAGE (HMMH) (REG. NO. UC053E THRU UC053K) cont'd -680640381

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Teat or InspectIon

Corrective ActIon

ELECTRICAL SYSTEM (CONT)

Step 42. Check for +24 VDC between wire (50) and ground at cab floor separation

point (25).

If +24 VDC is not present, repair wiring (50) between

connector AA and cab floor separation point.

If +24 VDC is present, go to step 43.

Step 43. Check for +24 VDC between wire (50) and ground at hydraulic switch (51).

If +24 VDC is not present, repair wiring (50) between cab floor

separation point and hydraulic switch.

If +24 VDC is present, go to step 44.

Step 44. Check for +24 VDC between wire (52) and ground at hydraulic switch (51).

If +24 VDC is not present, replace hydraulic suspension lockout

pump (page 4-511).

If +24 VDC is present, go to step 45.

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